Microwave steel

April 1, 2004
A Michigan Technological University researcher wired together magnetrons from six microwaves into one super heavy-duty oven, added an electric arc furnace, and placed iron oxide and coal inside. The result: In minutes, the microwave energy reduced the iron ore to iron and the electric arc furnace smelted the iron and coal into steel.

 

This process could give the steel industry the same benefits that a microwave gives a family, says Jiann-Yang Hwang, an associate professor of materials science and engineering at the Houghton, Mich., school. "With a blast furnace, most of the heat escapes," says Hwang. "It's similar to the stove in your home, where most of the heat warms the kitchen. It's inefficient. In our microwave, iron oxides can be heated to 1,000°C in 1 minute, compared to hours for conventional heating," he adds.

Also, microwave technology could cut steel production costs in half, according to Hwang. In addition to energy savings, the process uses coal, eliminating high-cost coke. The manufacturing process is simple, cutting the number of steelmaking steps in half. The environment would benefit as well, with significant reductions in greenhouse gases and sulfur-dioxide emissions.

Sponsored Recommendations

The Digital Thread: End-to-End Data-Driven Manufacturing

May 1, 2024
Creating a Digital Thread by harnessing end-to-end manufacturing data is providing unprecedented opportunities to create efficiencies in the world of manufacturing.

Medical Device Manufacturing and Biocompatible Materials

May 1, 2024
Learn about the critical importance of biocompatible materials in medical device manufacturing, emphasizing the stringent regulations and complex considerations involved in ensuring...

VICIS Case Study

May 1, 2024
The team at VICIS turned to SyBridge and Carbon in order to design and manufacture protective helmet pads, leveraging the digitization and customization expertise of Toolkit3D...

What's Next for Additive Manufacturing?

May 1, 2024
From larger, faster 3D printers to more sustainable materials, discover several of the top additive manufacturing trends for 2023 and beyond.

Voice your opinion!

To join the conversation, and become an exclusive member of Machine Design, create an account today!